ABSTRACT This study was cmried out to assess the effects of raw materials inputs on product quality in manufacturing industries. Data was collected through the use of questionnaires accompanied by observation and interviews. The study involved 20 respondents. These were all involved in different activities at different departments. It was revealed that there is a close relationship between Raw material inputs on product quality factors such as moisture content of grains, hardness of grains, broken or whole grains had an effect on the alcohol content of the beer, it's taste and aroma. The results indicate that there is need to incorporate new measures of determining quality of the raw materials like ascertaining the scent or smell of the raw materials in addition to observing moistre content, hardness and whole or brokenness of the grains. Finally recommendations were made like: initiating outgrawers of some raw materials like sorghum to ensure standard and easy accessibility of raw materials, incorporating scent or smell of the grains to ascertain the quality of the Raw materials.